Asphalt Concrete : Simulation, Modeling, and Experimental Characterization

160 Pages·2005·7.885 MB·English

by  Masad, Eyad, Panoskaltsis, Vassilis P., Wang, Linbing

GEOTECHNICAL SPECIAL PUBLICAT ION NO. 146
ASPHALT CONCRETE
SIMULATION, MODELING, AND
EXPERIMENTAL CHARACTERIZATION
PROCEEDINGS OF THE R. LYTTON SYMPOSIUM ON
MECHANICS OF FLEXIBLE PAVEMENTS
June 1-3, 2005
Baton Rouge, Louisiana
SPONSORED BY
Pavements Committee of The Geo-Institute of the
American Society of Civil Engineers
Inelastic Committee of the Engineering Mechanics Division of the
American Society of Civil Engineers
EDITED BY
Eyad Masad
Vassilis P. Panoskaltsis
Linbing Wang
JiSCE
Published by the American Society of Civil Engineers
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Preface
This special publication includes papers on simulation, modeling and
experimental characterization of asphalt concrete. A number of papers report on
micromechanical finite element analysis of asphalt concrete with the purpose of
establishing the linkage between the properties of asphalt concrete constituents,
microstructure distribution and macroscopic properties and response. In these
micromechanical models, asphalt concrete constituents are modeled using elastic,
viscoelastic, and/or plastic properties. Also, the discrete element method was used to
analyze the micromechanical behavior of asphalt concrete under different loading
conditions. A number of papers report on the development and numerical
implementation of elasto-visco-plastic constitutive models mat address the cyclic
response, anisotropic behavior, and permanent deformation of asphalt concrete. Finite
element results are also presented in these papers to demonstrate the efficacy of the
models in predicting permanent deformation in asphalt pavements. Fatigue behavior
of asphalt concrete is addressed in this special publication through the development
of a calibrated mechanistic approach that includes the effect of aging. This approach
was used to analyze the fatigue life of different asphalt concrete mixtures. On a
closely related subject, three papers focus on the mathematical representation of
viscoelastic properties of asphalt concrete at a wide range of temperatures and
frequencies, and on experimental characterization of healing. Characterization of
moisture damage is addressed in this volume through the development of a test
protocol that accounts for the interaction of repeated loading with moisture. One of
the papers deals with the sensitivity of low temperature cracking models to changes
in the coefficient of thermal contraction. Finally, the last paper models the response
of asphalt pavements to a slow moving truck while taken into consideration the time-
dependent behavior of asphalt concrete, and the non-uniform stress distribution at the
tire-pavement interface.
Each paper published in this ASCE Geotechnical Special Publication (GSP)
was evaluated by peer reviewers and the editors. The papers that received at least one
positive review were sent to the authors to address the review comments. The authors
of the papers published here addressed all of the reviewers' comments to the
satisfaction of the editors. The ASCE Geo-Institute Pavements Committee
acknowledges with appreciation the reviewers' dedication and contribution of their
time and effort.
The papers found in this special publication were presented during the two-day
R. Lytton Symposium on Mechanics of Flexible Pavements, which was organized as
part of the 2005 Joint ASME/ASCE/SES Conference on Mechanics and Materials in
Baton Rouge-Louisiana on June 1-3, 2005. The symposium was sponsored by the
Inelastic Committee of the Engineering Mechanics Division of ASCE and the
vii
Pavements Committee of the ASCE Geo-Institute. Dr. Robert L. Lytton gave the
symposium opening address on the role of mechanics in reducing variability in
material characterization and performance prediction. The presentation of Dr. Lytton
was followed by a discussion among the symposium participants on the applications
of mechanics principles in asphalt pavements.
The editors of this volume would like to thank the Board of Governors of the Geo-
Institute for their approval of the symposium and this special publication.
Eyad Masad, Texas A&M University
Vassilis P. Panoskaltsis, Case Western Reserve University
Linbing Wang, Virginia Tech
August 10,2005
viii
Contents
Micromechanical Simulation of Asphaltic Materials Using the Discrete
Element Method. 1
A. R. Abbas, A. T. Papagiannakis, and E. A. Masad
A Micromechanical Viscoelasto-Plastic Model for Asphalt Mixture 12
Oingli Dai, Zhanping You, and Martin H. Sadd
Development and Implementation of a Finite Element Model for Asphalt Mixture
to Predict Compressive Complex Moduli at Low and Intermediate Temperatures, ,21
Zhanping You, Qingli Dai, and Bardan Gurung
An Evaluation of the Stress Non-Uniformity due to the Heterogeneity of AC in the
Indirect Tensile Tesi ,29
Bmg Zhang, Linbmg Wang, and Mehmet T. Turnay
The Development of a Microstructural-Based Continuum Model for Hot
Mix Asphalt .44
Samer H. Dessouky and Eyad A. Masad
Development of a Computational Model for Asphaltic Concrete Response under
Cyclic Loading 53
Edwin Swart, Tom Scarpas, and Xueyan Liu
Numerical Implementation of a Hyperelastic-Viscoplastic Damage Model
for Asphalt Concrete Materials and Pavements .61
Dinesh Panneerselvam and Vassilis P. Panoskaltsis
The Huet-Sayegh Model: A Simple and Excellent Rheological Model for Master
Curves of Asphaltic Mixes 73
Adnaan C. Pronk
Partial Healing: A New Approach for the Damage Process during Fatigue Testing
ot Asphalt Specimen, .83
Adriaan C. Pronk
Laboratory Investigation on Healing of Sand Asphalt Mixtures 95
Venkaiah Chowdary, J. Murali Krishnan, and V. R. Rengaraju
Fatigue Characterization of HMAC Mixtures Using Mechanistic Empirical
and Calibrated Mechanistic Approaches Including the Effects of Aging 103
Lubinda F. Walubita, Amy Epps Martin, Charles Glover, Sung Hoon Jung,
Gregory Cleveland, and Robert L. Lytton
A Case Study: Assessing the Sensitivity of the Coefficient of Thermal Contraction
of AC Mixtures on Thermal Crack Prediction ,115
Hao Yin, Ghassan R. Chehab, and Shelley M. Stoffels
Evaluation of Moisture Sensitivity of Hot Mix Asphalt by Flexural Beam
Fatigue test .124
Qing Lu and John T. Harvey
ix